Getting attention from being loud, obnoxious, and stupid doesn't make you relevant. Likewise, being loud, obnoxious, and stupid doesn't make you relevant either.
Get back to me when they start winning federal elections and have a percentage of nationwide support that's higher than a single digit (I doubt it's even that high) - then they'll be relevant. Not to mention Alt-Right aren't Nazis. Hell, even Neo-Nazis aren't proper Nazis. These groups just glorify Nazis out of common ignorance.